Transformer-mounting



C. H. THORDARSON.

TRANSFORMER MOUNTING.

APPLICATION FILED JAN.6,1919.

1,335,803, Patented Apr. 6,1920.

CHESTER H. THORDARSON, OF CHICAGO, ILLINOIS.

TRANSFORMERFMOUN TING.

Application fi1ed January 6, 1919.

To all whom it may concern Be it known that I, CHESTER H. THORDAR- soN, a citizen of the United States, and a resident of Chicago, in the county of Cook, in the State of Illinois, have invented certain new and useful Improvements in TransformenMountings; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the char-' acters of reference; marked thereon, which form. a part-of this specification.

This invention-relates to mprovements in electrical transformers, and refers more specifically to an improved mounting by which the transformer elements are mounted within a containing casing or vessel, the latter tocontain also a cooling medium such as oil, by which the transformer elements are maintained suitably cool during the operation thereof.

Among the objects of the invention is to provide an exceedingly simple and effective method for mounting the transformer elements, including the core and windings in the casing in such manner as to prevent lateral movement or vibration of the transformer elements in the casing, and which also permits the transformer elements to be readily removed from and placed into the casing.

Another and subsidiary object of the invention is to provide a novel means for supporting the transformer elements in the bottom of the casing, whereby the transformer elements are reliably supported in said casing without the necessity of riveting, bolt- -ing,..or otherwise fastening the parts to the wall of the casing.

Another and a. subsidiary object of the invention is to provide a novel means for bracing the upper part of the transformer core on the casing \vall,'and by means which prevent relative vibration of the transformer elements and casing, and which also permit the transformer elements to be readily removed from and placed into the casing.

Other objects of the invention are to further improve and simplify transformer mountings of the class described. and the invention consists in the combination and arrangement of the parts shown in the drawings and described in the specification, and is pointedout in the appended claims.

It will be understood that the invention is Specification of Letters Patent.

Patented Apr. e, 1920.

Serial No. 269,802.

not limited to any particular type of transformer structure. The structure herein Patent, Serial No. 75,969, filed February 3,

In the drawings,

Figure 1 is a vertical section of a trans former and casing embodying my improve ments.

Fig. 2 is a planview of said parts. I

Fig. 3 is a detail section on the line 3 of Fig. 1.

Fig. 1 is a plan View of a transformer and its casing showing a modification of the mounting.

Fig. 5 is a detail axial section thereof.

As shown in the drawings, 10 designates the casing which may be of any particular cross section desired to adapt it to the transformer section. As herein shown it is cylindric. It has a bottom wall 11, preferably made integral with the cylindrical wall and the casing may be closed at its top in any suitable or preferred manner.

The transformer structure ,mounted in said casing embraces in general terms a laminated core structure comprising upright or side members 12, top and bottom members 13, 14, respectively, and a core member which is surrounded by a winding 15 of any preferred type.

The laminae of the core members are clamped between angle bars 16 by means of clamping bolts 17' which extend through the webs 17 of the angle bars thatlie fiat against the laminated structure; the flagnes 18 of said angle bars extending outwardly from the laminated structure. The angle bars are located in pairs at each side of the laminated structure, and said angle bars eX- tend at theirupper and lower ends beyond said structure. The structure described constitutes in itself no part of the present invention and may be otherwise arranged.

20 designates a flanged plate that is made of a size to fit closely in the casing and is adapted to lie on the bottom wall 11 of the casing. The flange or rim 21 fits closely the cylindric or other cross section wall of the casing. 22 designates a confining member that is disposed diametrically across the flanged plate 20 and ispermanently attached thereto in any suitable manner, as by the rivets 23. Said confining member as herein shown takes the form of a channel bar with its web lying flat on the flanged plate 20 and attached thereto bythe rivets 23 as stated. The flanges 24: of said channel bar lie against the outer faces of the web members 17 of the corner angle bars,

- and may be fixed thereto in any preferred manner. As herein shown, the flanged members 18 of said angle bars terminate at, their lowerlends short of the web members 17 thereof; and the flanges 24 of the channel bar may extend upwardly such distance alongside the lower ends of the web rnem bers 17 of the angle bars as to be apertured for engagement by the bolts 17 and the wedges 25, prox ided in the structure set forth in my aforesaid application, Serial No. 75,969, for pressing the laminated core members together. The construction described provides means whereby the core structure is prevented from shifting in any direction toward the upright wall 10 of the casing.

Referring now to the means for bracing the upper end of the magnetic structure from the casing, one form'of such bracing is shown in Figs. 1 and 2 and is made as follows:

27, 27"designate resilient looped members disposed on opposite sides of the core struc' ture. The curved intermediate portions of said looped members are shaped to lie against the inner cylindric wall of the casing at diametrically opposite points. The said loop shaped bracing members are formed at. their ends to provide arms 28 which are directed toward each other and are adapted to cooperate with the outstanding flanges 18 of the angle bar frame members 16. The inturned ends 28 of the bracingmembers are apertured to receiveclampingbolts 29,, which also pass through apertures in the upper endsof the flanges '18.

Said bolts are threaded to receive nuts 30 which'in this instancebear against the inner faces of the arms 28 of the bracing mem-- here; the heads of the bolts bearing against the outer faces of the flanges 18.

The said bracing members are so shaped that when not under restraint the ends 28 thereof are spaced from the flanges 18, as

indicated in dotted lines in Fig. 2. Clamp ing pressureeXerted by the. nuts 30, however, serve to force said ends against the flanges 18, and in so forcing the ends of the bracing members outwardly cause the intermediate curved portions of said bracing members to conform to the inner cylindrical wall of the casing along a length of the bracing w I details particularly illustrated and described,

2. The said bracing member is made of a flat strip of any suitable resilient metal, and

its resiliency is sufliciently permanent to maintain a cushioning bracing efi'ect between the upperend of the magnetic structure and .the casing wall.

.' With the construction described, it will I be apparent thatthe core structure with the lower supporting plate 20 and the brace ,members 27 thereto attached may be read- 3 The cushioning or resilient brace for the upper end of the core structure is more specially adapted to transformers of relatively 'small dimensions. vFor the'larger sizes of transformers, it may be necessary to provide a more'rugged bracing connection between the upper end of the core structure and the shell. In Figs. 1- and 5 is shown a bracing structure which is well adapted to the larger transformers. v

As shown in said figures, 32 designates a ring adapted to fit within the 'cylindric shell of the casing. As herein shown, it is of channel cross section with its flanges abut-/ ting edgewise against the casing wall.- 33, 33 designate bars which extend transversely across the casing at right angles to the upper member 13 of the core structure. Said bars are fixedly attached, as by means of rivets 34:, to the outstanding flanges-18 of the corner angles 16. Beyond the points of attachment of the brace bars 33 to said angle bars,

'said brace bars are provided with terminal portions 35 which are shaped to fit the inner face of the ring 32 and are fixedly attached thereto as by means of rivets 36. The bracing ring 32 may or may not be flanged .as shown, and the brace bars 33 may be constructed to adord a resilient bracing effect between the core structure and the shell wall.

If said ring and the bracing. bars be made rigid, the ring may be dimensioned to fit somewhat loosely in the upper end of the shell and wedges may be driven between the ring and the shell.

It will be understood that the transformer mounting herein shown may assume other structural forms without departure from the spirit and scgpe ofthe invention, and that the invention" is not limited to the structural except as to claims wherein the details are specifically enumerated.

ll claim as my invention, 1. The combination with a transformer casing having a closed end and transformer elements therein, of a supporting member for the transformer elements of a diameter to engage the upright casing wall and resting on said closed end and fitting closely against said casing wall to hold it from shifting laterally relatively to the casing wall, said supporting memberfbeingifreely movable into and out of thejcasin'g, and

means to fix the transformer elemen' sto said" supporting member. v

2. The combinationsyvith casing having a, closed end and transformer elements therein, of a flanged fsup porting plate for the transformer "element's resting on said closed end, with its-'fla" e of substantially the diameter of thi sing and closely fitting the wall of the casing, and

means to fix'the transformer elements to,

7 margin against the casing wall and removable from the casing, and a transformer retaining member fixed to said plate and ree movable with said transformer stru ture and plate from the casing. I

4. The combination with a transformer casing having a closed end'andj' a transformer structure therein, of a:.supporting plate for said structure resting .on said closed end and fitting at its marginagainst the casing wall, and a channel member fixed to said plate with its upright fianges fitted against and interlocked to the transformer structure. v y

The combination with a transformer casing having a closed endand a trans- 'forme r structure therein embracing a lami nated core frame and clamplngbarsifor confining the laminae of the core frame,said bars extending beyond the corefram'e, of a supporting plate for the transformerstructure resting on the closed end andfitting closely in the casing, and a channel. member; fixed to said plate,'with its flanges overlap- II ping the ends of said clamping bars. a 6. The combination with 'ajtransformer casing having a closed end and a transformer structure therein embracinga laminated core frame and clamping bars for confining the laminae of the core frame, said bars extending beyond the core frame, of a supporting plate for the transformer structure resting on said closed end and fitting closely in the casing, and a channel member fixed to sa'idplate with its flanges over-1;; lapping the ends of said clamping bars, with gj. means for locking said flanges of the channel 1 member to said clamping bars to prevent shifting of the core structure.

7. The combination With a transformer casing having a closed end and a transformer structure therein embracing a laminated core frame and clamping bars for confining the laminae of the core frame, said bars extending beyond the core frame, of a' supporting plate'for the transformer structure resting on said closed end and fitting closely in the casing, and a channel member fixed to said plate, with its flanges overlapping the extended ends of said clamping bars, means for locking said flanges of the channel member to said clamping bars to prevent shifting of the core structure, and bracing means between the end of the transformer structure remote from said plate and the wall of thecasing;

8. The combination with atransformer casing having a closed end and transformer elements therein, of a supporting member for the transformer elements resting on said closed end and fitting closely against the casing wall'tofholdthe transformer elements from shifting laterally and freely movable into and out of the casing, and resilient bracing means interposed between the transformer structure and the casing wall remote from the closed end of the casing.

9. The combination with a transformer casrng having a. closed end and a transformer structure therein embracing a laminated core frame and clamping bars for confining the laminae of the core frame, said bars extending beyond the core frame at both ends thereof,of a supporting plate for the transformer structure resting on' said frame and clamping bars for confining the laminae of the core'frame, said bars extending beyond both ends of the core frame,

of a supporting vplate for the transformer structure resting on said closed end. and fitting closely the casing wall, a channel member fixed to said plate, with. its flanges overlapping the endsof said clamp ing bars at one end of the core frame, and resilient bracing means between the other ends of said clamping bars and the casing wall.

11, Th'e combination with a transformer casingfhaving a closed-'znd'and a trans former structure therein embracing a laminatedflcorei frame *and clamping bars for confining the 'laminaeofthe core frame and extending beyond bothfen'dsof said frame,

of a supporting plate for the transformer structure resting on said closed end and fitting closely the casing wall, a channel member fixed to said plate, with its flanges over-' lapping the ends of said clamping bars, and bracing means between the other ends of said clamping barsa-nd the casing wall embracing loop-shaped resilient members, the

curved portions of-which engage the casing 'wall and havlng portions overlapping the extended ends of the clamping bars, withclamping means for forcing said ends toward the clamping bars and thereby forcing the closed portions of the loops outwardly against the casing wall.

12. The, combination with a transformer casing and a transformer structure therein, of means for supporting the transformer structure at one end thereof in said casing,

and resilient bracing means between the other, end of the transformer structure and the casing wall. I,

13. The combination with a transformer casing having a closed end and a transformer structure supported therein and having means to support it on said closed end and to hold it centrally in the casing, bracing means between the transformer structure and the casing wall near the end of the latter remote from said closed end, embracing curved members which conform to the curvature of the casing wall.

14:.- The combination with a transformer casing and a transformer structure therein,

' embracing a laminated core and clamping bars fitted to the sides of the core, with clamping means acting thereon to hold the laniinae of the core together, said clamping bars extending beyond the core, and resilient bracing means between the clamping bars and the casing walL' 15. The combination with a transformer casing'and a transformer structure therein, embracing a laminated core and clamping bars fitted to the sides of the core, with clamping means acting thereon to hold the laminae of-the core together,'said clamping bars extending beyond the core, and resilient bracing means fastened to the extended ends of the clamping bars and "coacting with the casing wall. 3

- 116. The combination with a transformer ,casing and a transformer structure'therein embracing a laminated core and clamping bars fitted to the sides of the core, with clamping means acting thereon to hold the laminae of the core together, said clamping bars extending beyond the core, C-shape'd resilient brace members havin their closed curved portions engaged'with the casing wall and with their ends overlapping said clamping bars, and clamping bolts extending through said ends and said clamping members.

17. The combination with a casing and a transformer structure therein, of a C-shaped, resilient bracing member having its ends clamped to the 'core structure and with its 

